| 摘要 |
PROBLEM TO BE SOLVED: To provide a movable scaffold equipment for a shield machine which assures an easiness of segment joining task for workers and, enhances strength of tunnel structures. SOLUTION: The movable scaffold equipment 10 where a working floor 103 is made movable against a working deck 19 which is placed within a main shield body 1 of the shield machine is provided with a hydraulic cylinder 104 for advance or retreat of the floor 103 along axis of the main shield body 1 and, a hydraulic cylinder 105 for substantially vertically moving up and down the floor 103.
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